Microsatellite genetic diversity and differentiation of native and introduced grass carp populations in three continents
Duane Chapman, Q. Chen, Chenghui Wang, Jinlian Zhao, Guoqing Lu, Jeney Zsigmond, Si-Fa Li
2012, Genetica (140) 115-123
Grass carp (Ctenopharyngodon idella), a freshwater species native to China, has been introduced to about 100 countries/regions and poses both biological and environmental challenges to the receiving ecosystems. In this study, we analyzed genetic variation in grass carp from three introduced river systems (Mississippi River Basin in US,...
Progress report geologic map of the Grouse Creek 30' x 60' quadrangle, and Utah part of the Jackpot 30' x 60' quadrangle, Box Elder County, Utah, and Cassia County, Idaho (Year 3 of 4);
David M. Miller, Donald L. Clark, Michael L. Wells, Charles G. Oviatt, Tracey J. Felger, Victoria R. Todd
2012, Utah Geological Survey Open-File Report 598
No abstract available....
The principal rare earth elements deposits of the United States: A summary of domestic deposits and a global perspective
Keith R. Long, Bradley S. Van Gosen, Nora K. Foley, Daniel Cordier
2012, Book chapter, Non-renewable resource issues
Demand for the rare earth elements (REE, lanthanide elements) is estimated to be increasing at a rate of about 8% per year due to increasing applications in consumer products, computers, automobiles, aircraft, and other advanced technology products. Much of this demand growth is driven by new technologies that increase...
Comparison of electrical conductivity calculation methods for natural waters
R. Blaine McCleskey, D. Kirk Nordstrom, Joseph N. Ryan
2012, Limnology and Oceanography: Methods (10) 952-967
The capability of eleven methods to calculate the electrical conductivity of a wide range of natural waters from their chemical composition was investigated. A brief summary of each method is presented including equations to calculate the conductivities of individual ions, the ions incorporated, and the method's limitations. The ability of...
Estimating White-tailed Deer abundance at Gettysburg National Military Park and Eisenhower National Historic Site
David P. Stainbrook, Duane R. Diefenbach
2012, Natural Resource Technical Report NPS/NER/NRTR—2012/626
The mission at Gettysburg National Military Park and Eisenhower National Historic Site (GNMP-ENHS) is to preserve the historic character of the parks to enable current and future generations to understand and interpret the events that took place at each park. Management objectives include maintaining the landscape as it existed during...
Communicating science: from cuneiform to the contemporary and beyond
Cecil A. Jennings
Cecil A. Jennings, Thomas E. Lauer, Bruce C. Vondracek, editor(s)
2012, Book chapter, Scientific Communication for Natural Resource Professionals
No abstract available....
Measuring rotational ground motions in seismological practice
William H. K. Lee, John R. Evans, B. S. Huang, C. R. Hutt, C.-J. Lin, C.-C. Liu, R. L. Nigbor
2012, Book chapter, New Manual of Seismological Observatory Practice 2 (NMSOP-2)
No abstract available....
Bird productivity and nest predation in agricultural grasslands
Christine Ribic, Michael J. Guzy, Travis J. Anderson, David W. Sample, Jamie L. Nack
2012, Studies in Avian Biology (43) 119-134
Effective conservation strategies for grassland birds in agricultural landscapes require understanding how nesting success varies among different grassland habitats. A key component to this is identifying nest predators and how these predators vary by habitat. We quantified nesting activity of obligate grassland birds in three habitats [remnant prairie, cool-season grass...
Variance components estimation for continuous and discrete data, with emphasis on cross-classified sampling designs
Brian R. Gray
Robert A. Gitzen, Joshua J. Millspaugh, Andrew B. Cooper, Daniel S. Licht, editor(s)
2012, Book chapter, Design and analysis of long-term ecological monitoring studies
Variance components may play multiple roles (cf. Cox and Solomon 2003). First, magnitudes and relative magnitudes of the variances of random factors may have important scientific and management value in their own right. For example, variation in levels of invasive vegetation among and within lakes may suggest causal agents that...
Validation of a coupled wave-flow model in a high-energy setting: the mouth of the Columbia River
Edwin P.L. Elias, Guy R. Gelfenbaum, Andre J. van der Westhuysen
2012, Journal of Geophysical Research C: Oceans (117)
A monthlong time series of wave, current, salinity, and suspended-sediment measurements was made at five sites on a transect across the Mouth of Columbia River (MCR). These data were used to calibrate and evaluate the performance of a coupled hydrodynamic and wave model for the MCR based on the Delft3D...
Avian community responses to vegetation structure within chained and hand-cut pinyon-juniper woodlands on the Colorado Plateau
Charles van Riper III, Claire Crow
2012, Book chapter, The Colorado Plateau V: Research, environmental planning, and management for collaborative conservation
We investigated relationships between breeding birds and vegetation characteristics in fuels-reduction treatment areas within pinyon-juniper woodlands at locations over the Colorado Plateau. The goal of this study was to document differences in avian community responses to two types of pinyon-juniper fuels-reduction treatments (chained vs. hand-cut), relative to control sites. We...
Has the magnitude of floods across the USA changed with global CO2 levels?
Robert M. Hirsch, Karen R. Ryberg
2012, Hydrological Sciences Journal (57) 1-9
Statistical relationships between annual floods at 200 long-term (85–127 years of record) streamgauges in the coterminous United States and the global mean carbon dioxide concentration (GMCO2) record are explored. The streamgauge locations are limited to those with little or no regulation or urban development. The coterminous US is divided into...
Bothriocephalus acheilognathi Yamaguti (Asian Tapeworm)
Anindo Choudhury, Rebecca Cole
Robert A. Francis, editor(s)
2012, Book chapter, A handbook of global freshwater invasive species
No abstract available....
The Neoacadian orogenic core of the souther Appalachians: A geo-traverse through the migmatitic inner Piedmont from the Brushy Mountains to Lincolnton, North Carolina
Arthur J. Merschat, Robert D. Hatcher Jr., Heather E. Byars, G. Williams
Martha Cary Eppes, Mervin J. Bartholomew, editor(s)
2012, Book chapter, From the Blue Ridge to the coastal plain: Field excursions in the southeastern United States
The Inner Piedmont extends from North Carolina to Alabama and comprises the Neoacadian (360–345 Ma) orogenic core of the southern Appalachian orogen. Bordered to west by the Blue Ridge and the exotic Carolina superterrane to the east, the Inner Piedmont is cored by an extensive region of migmatitic, sillimanite-grade rocks....
The Hydrothermal Diamond Anvil Cell (HDAC) for raman spectroscopic studies of geologic fluids at high pressures and temperatures
Christian Schmidt, I-Ming Chou
Jean Dubessy, Marie-Camille Caumon, Fernando Rull Pérez, editor(s)
2012, Book chapter, Applications of Raman spectroscopy to earth sciences and cultural heritage
In this chapter, we describe the hydrothermal diamond-anvil cell (HDAC), which is specifically designed for experiments on systems with aqueous fluids to temperatures up to ⬚~1000ºC and pressures up to a few GPa to tens of GPa. This cell permits optical observation of the sample and the in situ determination...
The impact of biotic/abiotic interfaces in mineral nutrient cycling: A study of soils of the Santa Cruz chronosequence, California
Art F. White, Marjorie S. Schulz, Davison V. Vivit, Tomas D. Bullen, John A. Fitzpatrick
2012, Geochimica et Cosmochimica Acta (77) 62-85
Biotic/abiotic interactions between soil mineral nutrients and annual grassland vegetation are characterized for five soils in a marine terrace chronosequence near Santa Cruz, California. A Mediterranean climate, with wet winters and dry summers, controls the annual cycle of plant growth and litter decomposition, resulting in net above-ground productivities of...
Temporal trends in algae, benthic invertebrate, and fish assemblages in streams and rivers draining basins of varying land use in the south-central United States, 1993-2007
Matthew P. Miller, Jonathan G. Kennen, Jeffrey A. Mabe, Scott V. Mize
2012, Hydrobiologia (684) 15-33
Site-specific temporal trends in algae, benthic invertebrate, and fish assemblages were investigated in 15 streams and rivers draining basins of varying land use in the south-central United States from 1993–2007. A multivariate approach was used to identify sites with statistically significant trends in aquatic assemblages which were then tested for...
Spatial patterns of aquatic habitat richness in the Upper Mississippi River floodplain, USA
Nathan R. De Jager, Jason J. Rohweder
2012, Ecological Indicators (13) 275-283
Interactions among hydrology and geomorphology create shifting mosaics of aquatic habitat patches in large river floodplains (e.g., main and side channels, floodplain lakes, and shallow backwater areas) and the connectivity among these habitat patches underpins high levels of biotic diversity and productivity. However, the diversity and connectivity among the habitats...
Influences of the El Niño Southern Oscillation and the Pacific Decadal Oscillation on the timing of the North American spring
Gregory J. McCabe, Toby R. Ault, Benjamin I. Cook, Julio L. Betancourt, Mark D. Schwartz
2012, International Journal of Climatology (32) 2301-2310
Detrended, modelled first leaf dates for 856 sites across North America for the period 1900–2008 are used to examine how the El Niño Southern Oscillation (ENSO) and the Pacific Decadal Oscillation (PDO) separately and together might influence the timing of spring. Although spring (mean March through April) ENSO and PDO...
Geochemical modeling of changes in shallow groundwater chemistry observed during the MSU-ZERT CO2 injection experiment
Liange Zheng, J. A. Apps, N. Spycher, J. Birkholzer, Yousif K. Kharaka, James J. Thordsen, Sarah R. Beers, William N. Herkelrath, Evangelos Kakouros, Robert C. Trautz
2012, International Journal of Greenhouse Gas Control (7) 202-217
A field experiment involving the release of carbon dioxide (CO2) into a shallow aquifer was conducted near Bozeman, Montana, during the summer of 2008, to investigate the potential groundwater quality impacts in the case of leakage of CO2 from deep geological storage. As an essential part...
Emergent sandbar construction for least terns on the Missouri River: Effects on forage fishes in shallow-water habitats
J. H. Stucker, D. A. Buhl, M. H. Sherfy
2012, River Research and Applications (28) 1254-1265
Emergent sandbars on the Missouri River are actively managed for two listed bird species, piping plovers and interior least terns. As a plunge-diving piscivore, endangered least terns rely on ready access to appropriately sized slender-bodied fish: <52 mm total length for adults and <34 mm total length for young chicks. As part...
Are all intertidal wetlands naturally created equal? Bottlenecks, thresholds and knowledge gaps to mangrove and saltmarsh ecosystems
Daniel A. Friess, Ken W. Krauss, Erik M. Horstman, Thorsten Balke, Tjeerd J. Bouma, Demis Galli, Edward L. Webb
2012, Biological Reviews (87) 346-366
Intertidal wetlands such as saltmarshes and mangroves provide numerous important ecological functions, though they are in rapid and global decline. To better conserve and restore these wetland ecosystems, we need an understanding of the fundamental natural bottlenecks and thresholds to their establishment and long-term ecological maintenance. Despite inhabiting similar intertidal...
Changes in diameter growth of Taxodium distichum in response to flow alterations in the Savannah River
M Palta Monica, Thomas W. Doyle, C. Rhett Jackson, L Judy Meyer Judy, R Sharitz Rebecca
2012, Wetlands (32) 59-71
Efforts to maximize or restore ecological function on floodplains impacted by dam construction have increasingly focused on river flow management. Few studies, however, consider floodplain hydrogeomorphic position and annual climatic variation in dam impact assessment. The Savannah River, a large river ecosystem in the Southeastern United States, was impounded in...
Recent summer precipitation trends in the Greater Horn of Africa and the emerging role of Indian Ocean sea surface temperature
A. Park Williams, Christopher C. Funk, Joel Michaelsen, Sara A. Rauscher, Iain Robertson, Tommy H. G. Wils, Marcin Koprowski, Zewdu Eshetu, Neil J. Loader
2012, Climate Dynamics (39) 2307-2328
We utilize a variety of climate datasets to examine impacts of two mechanisms on precipitation in the Greater Horn of Africa (GHA) during northern-hemisphere summer. First, surface-pressure gradients draw moist air toward the GHA from the tropical Atlantic Ocean and Congo Basin. Variability of...
Analysis of the effects of heavy metals on vegetation hyperspectral reflectance properties
Terrence Slonecker
Prasad S. Thenkabail, Alfredo Huete, John G. Lyon, editor(s)
2012, Book chapter, Hyperspectral remote sensing of vegetation
